Coffee Science_v.19, 2024
URI permanente para esta coleção${dspace.url}/handle/123456789/14639
Navegar
4 resultados
Resultados da Pesquisa
Item Physicochemical characterization of coffee parchment of species Coffea arabica variety Castillo®(Universidade Federal de Lavras, 2024-07-03) Campuzano, Francisco; Escobar, Diana Marcela; L., Ana María TorresCoffee parchment is one of the most abundant wastes from coffee processing in Colombia, representing 5.8% of dry weight of the berry. This waste has been scarcely characterized, then this work is a complete physicochemical characterization of coffee parchment of the species Coffea arabica variety Castillo®. The coffee parchment composition was studied, determining the fractions of cellulose (49 %), hemicellulose (21 %), lignin (28 %), and inorganics (3 %) presented. Also, FTIR analysis was made to explore the different functional groups of the constituent molecules and confirm their presence, likewise the thermal profile was determined to confirm the composition and explore the thermal stability of this waste. Crystallinity was determined by the Segal method using XRD. A morphological analysis by SEM and a granulometric analysis of this raw material is also presented. All these analyses are important for proposing alternative uses of coffee parchment, such as obtaining cellulose.Item System dynamic model of green supply chain management robusta coffee Argopuro in Indonesia: A case study(Universidade Federal de Lavras, 2024-06-19) Purnomo, Bambang Herry; Ni’maturrakhmat, Viko Nurluthfiyadi; Wibowo, YuliSmall-scale Argopuro Robusta coffee agroindustry has the potential to harm the environment in every supply chain activity. Even though the waste processing process has been carried out, this is still not enough to reduce the environmental impact. Performance measurement of Green Supply Chain Management (GSCM) in the business is complex because it considers environmental indicators and operational business as a whole. GSCM performance is also dynamic because the behavior of the supply chain system often changes over time. Therefore, it is necessary to develop a performance diagnosis model that has complex and dynamic characteristics through a system dynamic model. This research aims to diagnose and improve the GSCM performance index for currently and future using a system dynamic model. The scope of the model starts from harvesting coffee cherries to selling processed products. Research result shows that there are 13 performance indicators. The indicator values are then determined using the system dynamic model to obtain an index value of GSCM. The simulation results show that in 2023, the GSCM performance value will be 35.40, which is included in the good enough status, and 2035 the performance value increase by 54.8. To improve its performance, an optimistic scenario is used. This scenario is built by providing intervention to increase the percentage of waste processing by 90% for solid waste and 70% for liquid waste. Increase the number of pickup trucks by 4 units and reduce the motorcycle by 45 units to be more optimal and reduce the amount of emissions produced. The simulation results show that with that scenario the GSCM performance index was successfully increased to 68.2 (good status) in 2035.Item Converting Arabica Coffee Parchment into value added products: Technical and Economic Assessment(Universidade Federal de Lavras, 2024-07-29) Setiawan, Adi; Sitepu, Billy B.; Muhammad; Anshar, Khairul; Riskina, Shafira; Nurjannah, Siti; Hakim, LukmanThe coffee processing industry is experiencing a continuous rise in residues due to increased coffee-cherry production. However, the utilization of coffee parchment, which contains toxic compounds, remains limited and requires further investigation. This study aims to convert coffee parchment into biochar for potential use as a raw material for porous carbon material. The research was conducted using a purpose-built pilot-scale reactor. The goal was to address challenges related to operational cost, simplicity in operation, and maintenance, utilizing the Net Present Value (NPV) approach. Results indicated that coffee parchment comprised 34.5% biochar, 42.15% bio-oil, and balanced un-condensable-gas. Additionally, biochar products consisted of 42.02% fixed carbon and 38.63% volatile matter. The pyrolysis equipment designed for coffee parchment showcased economic viability, considering optimized annual operating days and scalability for production.Item Chemical and microbiological characteristics of kombucha made from robusta cascara and green tea(Universidade Federal de Lavras, 2024-06-17) Parwiyanti; Nurrocmah, Siti Iliyo; Malahayati, NuraDried coffee peel or cascara as coffee waste is a potential ingredient that still contains phytochemical substances such as polyphenol and clorogenic acid. Cascara can be used in making kombucha. Kombucha is a functional drink made of fermenting tea and sugar with using symbiotic culture of bacteria and yeast (SCOBY) as starter. The addition of cascara and combination with green tea could potentially improve nutritional values on kombucha. This study aimed to evaluate the chemical and microbiological characteristics of kombucha made from robusta cascara and green tea. This study used Completely Randomized Design with one treatment factor namely combination of robusta cascara and green tea (100%:0%; 75%:25%; 50%:50%; 25%:75%; 0%:100%). The treatment repeated three times. The parameters observed were total polyphenol content, total titrated acid, total dissolved solid, pH, and total lactic acid bacteria. The result showed that combination of robusta cascara and green tea had significant effects on all parameters. The increased of green tea proportion in treatments could increase content of total titrated acid from 0.0032% (kombucha with 100% robusta cascara) to 0.0048% (kombucha with 100% green tea) whereas total dissolved solid from 0.0667% Brix to 9.1333% Brix and pH values from 3.6000 to 3.4667 slightly decreased in ombucha.The higher polyphenol content in the raw material the higher total polyphenol obtained in kombucha reflected on 100% green tea kombucha with 0.2245 mg GAE/mL. Total lactic acid bacteria of kombucha obtained at 3.3760 log CFU/mL to 4.3917 log CFU/mL.